CN1162055C - Power control apparatus for lighting system - Google Patents

Power control apparatus for lighting system Download PDF

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Publication number
CN1162055C
CN1162055C CNB961805110A CN96180511A CN1162055C CN 1162055 C CN1162055 C CN 1162055C CN B961805110 A CNB961805110 A CN B961805110A CN 96180511 A CN96180511 A CN 96180511A CN 1162055 C CN1162055 C CN 1162055C
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power
digital processing
output
control
means
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CNB961805110A
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Chinese (zh)
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CN1242136A (en
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阿兰・西克托尔・弗古斯・尼科尔斯
阿兰·西克托尔·弗古斯·尼科尔斯
・安托尼・弗雷德里克・莫斯
罗伯特·安托尼·弗雷德里克·莫斯
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恩康股份有限公司
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Priority to PCT/AU1996/000670 priority Critical patent/WO1998018296A1/en
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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
    • H05B41/00Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14Circuit arrangements
    • H05B41/36Controlling
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
    • H05B37/00Circuit arrangements for electric light sources in general
    • H05B37/02Controlling
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
    • H05B37/00Circuit arrangements for electric light sources in general
    • H05B37/02Controlling
    • H05B37/029Controlling a plurality of lamps following a preassigned sequence, e.g. theater lights, diapositive projector

Abstract

一种特别用于照明系统,例如荧光灯的功率控制设备。 In particular for a lighting system, such as a fluorescent lamp power control device. 在一个电网输入电源与至少一个输出到负载(6),例如照明系统的电源之间,耦合设置一个功率变化电路(16)。 A mains input and output between the at least one power load (6), for example, the illumination system, provided a power change coupling circuit (16). 该功率变化装置可控制为按照来自一个数字处理电路(10)的控制信号,改变供给负载的功率电平。 The power varying means may be controlled in accordance with a control signal from a digital processing circuit (10), changing the power level supplied to the load. 监视电路(12,14)与数字处理电路(10)耦合,以提供与输入电源(4)和至少一个输出电源(9)的电参数有关的监视信号。 A monitoring circuit (12, 14) and the digital processing circuit (10) coupled to provide an input power source (4) and at least one output power source (9) of the electrical parameters relating to the monitoring signals. 数字处理电路(10)响应监视信号的状态,控制功率变化电路(16),以使输出电源(9)在一个预定时限期间供给第一预定电平,之后使输出电源减小到第二预定电平。 Digital processing circuitry (10) in response to the state of the monitor signal, a power control change circuit (16), so that the output power (9) supplying a first predetermined level during a predetermined period of time, after which the output power is reduced to a second predetermined level level. 该第二预定电平和预定时限由数字处理装置按照第一存储器中所存储的控制参数来设置。 The second predetermined level and the predetermined time according to the control parameters stored in the first memory is set by digital processing means. 所存储的控制参数可能包括一天的预定时间和/或一周的预定天的指示,以及第二预定电平的对应值,其中数字处理电路(10)在一天的预定时间和/或一周的预定天响应定时器,以使第二预定电平变为存储在存储器中的对应值。 The stored control parameters may include an indication of a predetermined time and / or day of the week of a predetermined day, and the corresponding values ​​of a second predetermined level, at a predetermined time of day and / or day wherein the predetermined digital processing circuits (10) week response timer, such that a second predetermined level to the corresponding value stored in the memory.

Description

用于照明系统的功率控制设备 The power control apparatus for lighting systems

技术领域 FIELD

本发明涉及一种特别对照明系统,例如使用荧光灯的照明系统有用的功率控制设备。 The present invention particularly relates to a lighting system, for example, fluorescent lighting systems useful for the power control apparatus.

背景技术 Background technique

研究表明,许多建筑物为了它们的需要,例如趋于由现有照明系统进行过照明。 Studies have shown that many of the buildings to their needs, such as lighting tends to be conducted by the existing lighting system. 这样的过照明造成电力的浪费。 Such over lighting a waste of electricity. 通常,例如考虑到与许多其他灯比较,荧光灯提高了效率,所以把它们用于大型建筑物的照明系统。 Typically, for example, taking into account the comparison with many other lamps, fluorescent lamps improve efficiency, so use them for lighting systems in large buildings. 并且,在荧光灯中光输出与所需功率之间的关系为非线性,而且已经发现,在许多情况下,能实现荧光灯功率消耗的大大减小,而没有对应的光输出的显著变化。 The light output of the fluorescent lamp with the relationship between the power required for the non-linear, and it has been found, in many cases, can be achieved greatly reduce the power consumption of the fluorescent lamp, but no significant changes of the optical output. 然而,如果连续地对荧光灯照明系统供给减小的功率,则灯可能起动困难,例如增加闪烁时间,这样会降低灯的使用寿命。 However, if reduced power is continuously supplied to the fluorescent lighting system, it may be difficult to start the lamp, such as increasing the flash time, this will reduce the life of the lamp. 此外,可能希望调节灯的光强度输出,并且在大型照明系统设备中,可能因而希望从远距离或中央场所来改变光输出或消耗功率。 Furthermore, it may be desirable to adjust the intensity of the light output of the lamp, and a lighting system in a large apparatus, and therefore may be desirable to place a central or remote from the light output or power consumption.

发明内容 SUMMARY

按照本发明,提供一种用于照明系统的功率控制设备,它包括:一个功率变化装置,其耦合为接收交流电输入电源,并且产生可控的交流电输出电源,用以操作包括多盏灯的电负载;监视装置,用于监视输入电源和输出电源的电参数,以产生监视信号,该监视装置检测通过所述输出电源供给所述电负载的线电流的变化;一个数字处理装置,其耦合为接收所述监视信号,并且与所述功率变化装置耦合,以便控制所述功率变化装置,使所述输出电源在最大输出电平与最小输出电平之间改变;一个定时器,其与所述数字处理装置耦合;以及一个第一存储器,用于存储控制参数,并且与所述数字处理装置耦合,所述控制参数包括线电流增加阈值; According to the present invention, a power control device provided for a lighting system, comprising: a power variation means coupled to receive an AC input power source, and to produce a controlled AC output power for operating the electric lamp comprises a plurality a load; monitoring means for monitoring electrical parameters of the input power and output power, to generate a monitoring signal, the monitoring means detecting changes in the power supply line through the output current supplied to the electrical load; a digital processing means, coupled to receiving said monitoring signal and said power variation means coupled to control said power variation means so that the output power varies between a maximum output level and the minimum output level; a timer, with the coupling a digital processing apparatus; and a first memory for storing control parameters and coupled to said digital processing means, the control parameter comprises a line current increase threshold value;

其中所述数字处理装置响应所述监视信号的状态以控制所述功率变化装置,该监视信号表示所述线电流超过所述阈值的探测到的增加,以便控制所述功率变化装置在一个预定时限期间以第一预定电平产生所述输出电源,之后使所述输出电源减小到第二预定电平,并且其中所述第二预定电平和所述预定时限由所述数字处理装置按照存储在所述第一存储器中的控制参数来设置。 Wherein said digital processing means is responsive to the state of the monitor signal to control said power variation means, the monitoring signal indicative of the line current exceeds the threshold value of the detected increase, a predetermined time period so as to control said power variation means during a first predetermined level to produce said output power supply, then the output power is reduced to a second predetermined level, and wherein said second predetermined level and the predetermined time period by the digital processing means are stored, said control parameter memory to the first set.

优选地,所述存储的控制参数包括一天的预定时间和/或一周的预定天的指示,以及包括所述第二预定电平的对应值,并且其中所述数字处理装置在所述的一天的预定时间和/或一周的预定天,响应所述定时器,以使所述第二预定电平变为所述存储器中所存储的对应值。 Preferably, the control parameter comprises storing said predetermined time of day indication and a predetermined day and / or week, and includes a corresponding value of the second predetermined level, and wherein said digital processing means in said day the predetermined time and predetermined days / week or in response to the timer, so that the second predetermined level to the corresponding value stored in memory.

在本发明的一个优选形式中,至少一个光传感器与数字处理装置耦合,并且数字处理装置还响应由至少一个光传感器所探测的光强度,以增大或减小第二预定电平。 In a preferred form of the invention, the at least one light sensor device is coupled with the digital processing and digital processing means further responsive to the light intensity of the at least one light sensor is detected, to increase or decrease the second predetermined level. 在本发明的一个形式中,该设备包括多个与所述数字处理装置耦合的光传感器,各产生一个相应的探测光强度值,并且其中所述数字处理装置通过操作根据所述存储器中所存储的预选的相应的加权系数,计算该探测光强度值的加权平均,所述数字处理装置响应该加权平均,增大或减小所述第二预定电平。 In one form of the invention, the apparatus comprises a plurality of said digital processing means coupled to the light sensor, each generating a corresponding detection light intensity value, and wherein said digital processing means by operation according to the stored in the memory corresponding preselected weighting coefficients, the weighted average value of detection light intensity, said digital processing means responsive to the weighted average to increase or decrease said second predetermined level.

优选地,该设备还包括一个输入口,与数字处理装置耦合,以接收控制指令,其中所述数字处理装置响应第一控制指令,以改变包括所述第二预定电平的所述存储的控制参数。 Preferably, the apparatus further comprises a control input, a digital processing means coupled to receive control commands, wherein said digital processing means is responsive to a first control command to change the storing comprises said second predetermined level of parameter.

优选地,还设有一个第二存储器,与数字处理装置耦合,以存储性能数据,并且其中对于所述输出电源的各功率变化,所述数字处理装置在所述第二存储器中存储性能数据,性能数据可能包括表示所述输出电源的输出电平和发生功率变化的时间的数据。 Preferably, also a second memory, coupled to the digital processing means for storing performance data, and wherein for each power variation in said output power source said digital processing means stores performance data in said second memory, performance data may include power output represents the output data power level and time variation occurs.

在本发明的一个形式中,设置多个与单个数字处理装置耦合的功率变化装置,各功率变化装置被安排为把它的输出电源供给对应的不同电负载。 In one form of the invention, the power changing means is provided with a plurality of devices coupled to a single digital processing, each power variation means being arranged to supply its output power corresponding to different electrical loads. 在这种布置下,数字处理装置优选地适合于按照不同的对应的第二预定电平,分别控制各功率变化装置。 In this arrangement, the digital processing means is preferably adapted in a different second predetermined level corresponding, respectively, to control each of the power variation means.

各种形式的功率变化装置可以用于本发明。 Various forms of power variation means may be used in the present invention. 例如,功率变化装置可以包括可调变压器,其中所述第一预定电平对应于比所述第二预定电平大的交流电压。 For example, the power variation means may comprise a variable transformer, wherein said first predetermined level corresponds to a level greater than the second predetermined level AC voltage. 可选择地,功率变化装置例如可以包括波形变换装置,例如可控硅整流器(SCR),其中第一与第二预定电平之间的差受到相对于交流电输入电源的电压过零点点来改变SCR的起动时间的影响。 Alternatively, the power variation means may comprise, for example, waveform converting means, for example a silicon controlled rectifier (SCR), wherein a difference between the first and the second predetermined level with respect to the AC input power supply by a voltage zero crossing point is changed SCR the starting time of the impact.

在本发明的一个优选形式中,所述功率变化装置包括一个可调变压器,并且其中所述第一预定电平对应于比所述第二预定电平大的交流电压。 In a preferred form of the invention, the power variation means comprises a variable transformer, and wherein said first predetermined level corresponds to a level greater than the second predetermined level AC voltage. 优选地,所述监视装置监视所述输入电源的线电压和/或线电流,以便确定其过零点时间,并且其中所述数字处理装置适合于控制所述功率变化装置,以仅在至少大致上所述过零点时来改变输出电源。 Preferably, said monitoring means monitoring the input power supply line voltage and / or line current, to determine the zero crossing times thereof, and wherein said digital processing means is adapted to control said power variation means to at least substantially only through the zero point to change the output power.

如本领域技术人员从本说明书所能确定,本发明的实施例提供一种功率控制设备,它能用来减小电负载,例如荧光照明系统的功率消耗。 As those skilled in the art can determine from this specification, embodiments of the present invention to provide a power control apparatus, it can be used to reduce the electrical load, for example, the power consumption of a fluorescent lighting system. 当监视装置探测到一个状态,例如荧光灯接通时,该优选的功率控制设备作出响应,把输出电源增大到第一预定电平(例如最大可用功率),以便于灯的起动。 When the monitoring means detects a state, for example, the fluorescent lamp is turned on, the preferred power control apparatus responds, the output power is increased to a first predetermined level (eg maximum available power) in order to start the lamp. 在预定时限之后,然后使输出电源降低到第二预定电平,以便节省电力。 After a predetermined time limit, then the output power is reduced to a second predetermined level, in order to save power. 通过一个接收功率控制指令的输入口,可调节第二预定电平,并且因此可调节功率节省量。 Through the input port receiving a power control command, a second predetermined level may be adjusted, and thus can adjust the amount of power savings. 第二预定电平还可以受其他输入的影响,例如一天的选择时间,或响应测量环境光线的光传感器来调节。 The second predetermined level may be influenced by other inputs, such as selection of the time of day, or in response to the light sensor measuring the ambient light to adjust.

附图说明 BRIEF DESCRIPTION

在下文参考附图作为例子说明的本发明的几个实施例,更详细地叙述本发明,其中:图1是按照第一实施例的功率控制设备的方框图;图2是按照第二实施例的功率控制设备的方框图;图3是按照第三实施例的功率控制设备的方框图;图4是功能流程图,说明用于控制本发明的一个实施例中的微处理器的算法;图5是说明本发明的又一个实施例的方框图;图6说明用于本发明的实施例中的电力装置的例子;以及图7是定时图。 In several embodiments of the present invention are hereinafter described by way of example with reference to the accompanying drawings, the present invention is described in more detail, in which: FIG. 1 is a block diagram of a power control apparatus according to a first embodiment; FIG. 2 is a second embodiment according to the a block diagram of a power control apparatus; FIG. 3 is a block diagram of a power control apparatus according to the third embodiment; FIG. 4 is a functional flow chart illustrating a control algorithm for an embodiment of the present invention, the microprocessor embodiment; FIG. 5 is a block diagram of another embodiment of the present invention; FIG. 6 illustrates an example of an embodiment of the present invention for a power device; and FIG. 7 is a timing chart.

具体实施方式 Detailed ways

图1以方框图形式说明功率控制设备2,它耦合在一个电网交流电输入电源4与一个或多个电负载6,例如荧光或放电照明系统,或其他类似系统之间。 1 illustrates in block diagram form the power control device 2, which is coupled in an AC input power supply 4 with one or more electrical loads 6, such as a fluorescent or discharge lighting system, or between other similar systems. 功率控制设备2一般包括一个取电力装置8形式的功率变化装置,以及一个包含在微处理器电路10中的数字处理装置。 The power control apparatus 2 comprises a generally take the form of a power device 8 power change apparatus, and a digital processing means comprises a microprocessor circuit 10. 电力装置8耦合为接收电网输入电源4,并且提供至少一个输出电源9,以对至少一个负载6供电。 Power means 8 is coupled to receive an input power source 4, and to provide at least one output power source 9 to supply at least one load 6. 监视电路12、14设置为分别监视电网输入电源4和输出电源9的电参数。 Monitoring circuit 12, 14 are respectively provided to monitor the electrical power input and output parameters of the power supply 4 to 9. 如图1示意所示,监视电路12、14各自接收分别表示输入和输出电源的电压和电流的信号,并且对数字处理电路10提供输入。 Shown schematically in FIG. 1, the monitoring circuit 12, 14 each receive the voltage and current signals, respectively, represent the input and output power, and provide input to the digital processing circuit 10. 因此,如本领域技术人员将显而易见,监视电路12、14各自有利地包括适当的信号滤波和调节电路,以及转换电路,以按适当的信号电平和格式对数字处理电路10提供表示所监视电压和电流的输入。 Thus, as will be apparent to those skilled in the art, the monitoring circuit 12, 14 are each advantageously comprise appropriate signal filtering and conditioning circuitry, and conversion circuitry to an appropriate signal level format of the digital processing circuit 10 represents the monitored voltage and input current. 监视电路12、14还包括模拟-数字转换电路,以便对数字处理电路10提供适当的输入。 Monitoring circuit 12, 14 also includes an analog - digital conversion circuit so as to provide a suitable input to the digital processing circuit 10.

电力装置8主要提供一种装置,以改变通过各输出电源9供给电负载6的功率。 Power means 8 is mainly to provide a means to alter the power supplied to the electric load 6 through the output supply 9. 有几种方法可用来改变供给输出电源9的功率,并且电力装置8的具体形式将取决于所使用的功率变化方法。 There are several ways to change the power output of the power supply 9, and the specific form of the power device 8 will depend upon the power variation method employed. 例如,一种减小负载6所用功率的方法是对负载供给减小的电压。 For example, a method of reducing the power used by the load 6 is supplied to the load voltage decreases. 在这种情况下,电力装置8可能包括一个降压变压器,并且优选地变压器输出电压能够至少在输入电压的100%降到输入电压的一个分数,例如50%之间变化。 In this case, the power device 8 may include a step-down transformer, the output voltage of the transformer and is preferably capable of at least a fraction of the input voltage falls below 100% of the input voltage varies between 50%, for example. 这能例如通过使用常规形式的自耦变压器来实现,这种自耦变压器具有多个电压分接头或 连续可调。 This can be achieved by using, for example, in the form of a conventional autotransformer, the autotransformer having a plurality of such joints or adjustable voltage divider. 为了改变自耦变压器的输出电压,输出分接头从一个接头移到另一个接头,这种移动根据变压器的物理特性,可以用机械方式或通过电转接来实现。 In order to change the output voltage of the autotransformer, the output from a tap connector to another connector, which moves in accordance with the physical characteristics of the transformer can be mechanically or electrically by transfer is achieved. 对本领域技术人员将会显而易见,为了改变输出电压,能用常规装置实现所要求的转接或机械移动,例如通过步进电动机,因此这里不包括其实现细节,以避免影响本发明叙述的清晰性。 Will be apparent to those skilled in the art, in order to change the output voltage, using adapters or mechanical movement required to achieve the conventional apparatus, for example, by a stepping motor, and therefore is not included here clarity implementation details to avoid the effects of the present invention described .

其他能根据输入电源电平来改变电力装置的功率输出的方法是使用波形变换,波形变换例如可以利用可控硅(SCR)整流器或闸流管电路来实现。 Other methods can be used to vary the power output of the power supply device according to an input level of waveform transform is used, for example, using a waveform transform thyristor (SCR) or thyristor rectifier circuits. 在这种情况下,通过改变SCR或闸流管的点火时间,能改变电力装置的输出功率的电平。 In this case, by changing the ignition timing of the SCR or thyristor, change the level of the output power of the power device. 通过相对于电源输入电压波形的过零点点来增大点火时间,有可能改变传送到电力装置8输出侧的负载6的功率。 With respect to the zero crossing point by the input supply voltage waveform to increase the ignition time, possible to vary the power delivered to the load 8 on the output side of the power device 6. 对本领域技术人员来说,改变所述型式的波形变换电路的点火时间的方式也将显而易见,因此不详细叙述。 The skilled person, changing the type of the waveform converting circuit of the embodiment will be apparent to the ignition timing, and therefore will not be described in detail.

电力装置8通过功率控制电路16与数字处理电路10耦合。 The power control means 810 is coupled to the digital processing circuit 16 through the power circuit. 功率控制电路16的作用主要是从数字处理电路10接收控制信号,并且把这些信号变成控制电力装置8的功率变化所要求的形式。 Function of the power control circuit 16 is mainly digital processing circuit 10 receives a control signal, and these signals into the form of the power control means 8 in the electric power required. 例如,对于电力装置8包括一个连续可调自耦变压器情况,其输出通过使用步进电动机或其他类似装置受到机械控制,则功率控制电路16适合于把数字处理电路10输出的逻辑电平控制信号变成操作步进电动机的电信号,以便改变电力装置8的输出。 For example, for the power device 8 comprises a continuously variable autotransformer, the output of which is mechanically controlled by a stepping motor or other similar device, the power control circuit 16 is adapted to the logic level of the control signal output from the digital processing circuit 10 to an electric stepping motor operation, so as to change the output power device 8. 另一方面,对于电力装置8的不同实施例,可能不需要功率控制电路16,或功率控制电路16可以结合在数字处理电路10中。 On the other hand, for different embodiments of the power device 8, the power control circuit 16 may not be required, or the power control circuit 16 may be incorporated in the digital processing circuit 10. 例如,如果电力装置8包括仅要求精确定时的逻辑电平信号的波形变换电路,例如SCR,那么可以直接从数字处理电路10提供点火信号。 For example, if the power device 8 comprises only requires accurate timing of the waveform converting circuit of the logic level signal, for example the SCR, then the firing may be provided directly from the digital signal processing circuit 10.

数字处理电路10可以包括任何适当的数字处理电路,例如微处理器或微控制器电路,或其他类似的提供信号的输入和输出及具有存储控制算法和数据的存储器的电路。 The digital processing circuit 10 may comprise any suitable digital processing circuitry, such as input and output circuit microprocessor or microcontroller, or other like signal providing circuit and having a control algorithm and a data storage memory. 例如,本领域技术人员将会理解的8251微控制器电路能有效地用于数字处理电路10。 For example, the 8251 microcontroller circuit skilled in the art will appreciate can be effectively used in the digital processing circuit 10. 如所述,数字处理电路10从监视电路12和14接收输入信号,并且通过功率控制电路16对电力装置8输出控制信号。 As described, digital processing circuit 10 receives an input signal from the monitoring circuit 12 and 14, and the circuit 168 outputs a control signal to the power controlled by the power means. 数字处理电路10还设有一个编程输入口18,一个输出数据口20,并且它可选择地与一个或多个显示装置22耦合。 Digital processing circuit 10 is also provided with a programming input port 18, a data output port 20, and it is selectively coupled to one or more display devices 22.

数字处理电路10包括处理电路,它在一个存储器电路所存储的指令控制下起作用,该存储器电路优选地为一个非易失形式的存储器,例如ROM、PROM、EPROM、闪存RAM或电池后备RAM。 The digital processing circuit 10 includes a processing circuit, a memory circuit that the instruction stored in the control function, the memory circuit is preferably a non-volatile form of memory, such as ROM, PROM, EPROM, flash RAM or battery backed RAM. 电路10还设有如RAM存储器那样的存储器,以存储控制参数(这些控制参数可以从编程口18接收)或存储通过输出口20或显示装置22输出的数据。 Circuit 10 is also provided with a memory as RAM memory for storing control parameters (these control parameters may be received from the programming port 18) or storage 20 via outlet 22 or the display data output means. 数字处理电路10的主要功能是按照其编程指令和控制参数,并且根据从监视电路12、14和编程输入口18所接收的输入起作用,以便控制电力装置8,并且特别控制通过输出电源9传送到负载6的输出功率。 The main functions of the digital processing circuit 10 in accordance with its programmed instructions and control parameters, and the function according to the input received from the monitoring circuits 12, 14 and programming input port 18, so that the power control means 8, and in particular to control the output power transmitted through 9 6, the output power to the load. 图4说明用于微处理器控制电路10的控制算法的一例。 FIG 4 illustrates an example of a control algorithm for the microprocessor control circuit 10. 实际中图4流程图所说明的算法将包含在存储器所存储的指令编码中,并且由微处理器或微控制器来执行,尽管可选择地数字处理电路10可能包括一个可编程逻辑电路(PLC)或其他类似电路,在这种情况下,算法可以硬布线到PIC中。 In practice the algorithm illustrated in FIG. 4 is a flowchart included in the instruction code stored in the memory, and executed by a microprocessor or microcontroller, although alternatively digital processing circuit 10 may include a programmable logic circuit (PLC ) or other similar circuit, in this case, the algorithm may be hardwired into the PIC. 如所述,除用存储器存储控制指令外,数字处理电路10优选地还设有用于存储控制参数的存储器,这些控制参数例如可以通过编程口18来接收。 As described, in addition to storing the memory control command, the digital processing circuit 10 is preferably further provided with a memory for storing control parameters, these control parameters may be received, for example, by programming the opening 18. 存储在数字处理电路10中的控制参数数据典型地将包括:表示减小的操作功率电平的数据,以用于与控制设备耦合的负载;在电力装置8以不连续步可调的情况下,减小的操作功率电平与满操作功率电平之间的步数;当增加新负载时,在减小到减小的输出功率电平之前,保持在满输出功率电平的延时;表示使输出电源转换到满输出功率而必须增加的新负载量的阈值;以及在功率电平以不连续步变化情况下,或在功率电平连续变化情况下,保持在各步的时间间隔,以及使功率电平从满输出电平降到减小的输出电平的总时间。 Will include a control parameter data stored in the digital processing circuit 10 is typically: showing reduced operating power level data for controlling the load device is coupled; in case where the power device 8 is adjustable in discrete steps , the number of steps between the reduced operating power level and the full operating power level; when a new load, to be reduced before the reduced output power level maintained at full output power level of the delay; represents the output power converter to a full output power to increase a new load threshold; and at a power level in a discontinuous step changes, or in the case where the power continuously changes in level, holding at the time of each step interval, and causing the power level of the output level down to the total time is reduced from the full output level.

参考图6,说明的是可以用于本发明实施例的电力装置8的自耦变压器40的简单示意图。 Referring to Figure 6, a schematic diagram of a simple power device autotransformer may be used in embodiments of the present invention 40 8. 该自耦变压器40构成为在其一次端接收电网输入电压VIN,并且在二次端具有多个标记为P1到P6的分接头。 The autotransformer 40 is configured to receive power at one of its ends input voltage VIN, and the second end having a plurality of marks P1 to P6 taps. 分接头P1到P6与一个多路电路42的各个输入耦合,该多路电路42具有单输出44,它提供一个输出电压VOUT。 Tap P1 to P6 is coupled to the respective inputs of a multiplexer circuit 42, the multiplexer circuit 42 having a single output 44 which provides an output voltage VOUT. 多路电路42构成为按照在实际中从数字处理电路10所提供的输入指令46,把其输入中的一个且仅有一个耦合到输出44。 Multiplexing circuit 42 is configured in accordance with the input instruction in practice from the digital processing circuit 10, 46 is provided, the one and only one of its inputs coupled to the output 44.

作为例子,分接头P1到P6可以安排为使输出电压VOUT能够以10%增量在100%VIN到50%VIN的范围之内变化。 As an example, the tap may be arranged P1 to P6 change of the output voltage VOUT can be in increments of 10% to 100% VIN within the range of 50% VIN. 因此,通过改变电压输出线44所耦合的变压器分接头,能改变输出电压,并且因此能改变供给负载的功率。 Thus, by changing the voltage of the output line 44 coupled transformer taps, the output voltage can change, and therefore the power supplied to the load change. 如所述,这是根据来自数字处理电路10的指令,用多路电路42来实现的。 As described, which is based on an instruction from the digital processing circuit 10, a multiplex circuit 42 to achieve. 从一个分接头到另一个分接头的转接是在输入电压波形的过零点点时进行的,以便避免输出电压波形的相当大不连续性,从而避免在电力装置的输出中引入噪声。 Switching from one tap to another tap is performed when the input voltage waveform zero crossing point, in order to avoid significant discontinuities in the output voltage waveform thereby avoiding the introduction of noise in the output device. 并且优选地输出功率一次仅按单增量来减小,其间具有一个延时,以便使输出功率实现逐渐减小。 And preferably only once the output power is reduced in single increments, with a delay therebetween, so that the output power gradually decreases achieved. 另一方面,当需要增加输出功率时,例如以便能够起动增加到负载的另外荧光灯时,那么优选地使输出功率尽快地而不是逐步地增加到其最大。 On the other hand, when the output power needs to be increased, for example to be able to start a fluorescent lamp further increases the load, then the output power is preferably as soon as possible rather than gradually increased to its maximum.

图7说明对于使用图6所示类型的电力装置的功率控制设备,在操作期间参考输入电压的输出电压的曲线图。 7 illustrates a graph of the output voltage of a power control device, during the operation of the reference voltage input of the type shown in Figure 6 for the use of a power apparatus. 当最初起动时(t0),功率控制设备的微处理器控制器把电力装置的输出电压设置为最大电压(最大功率电平)。 When (t0) the initial start, the power control device microprocessor controller output voltage of the power device is provided to the maximum voltage (maximum power level). 输出电压在预定时限TS内保持最大,在此时限之后在时间t1,电压减小一个增量。 Maximum output voltage remains within a predetermined period of time TS, after which time at time t1, the voltage is decreased by one increment. 这个单增量减小例如对应于多路电路42把输出线44的连接从分接头P1转接到P2。 This single increment corresponds, for example, reducing the output line 42 to a multiplexer circuit 44 connected to the transfer from the tap P1 P2. 输出电压在该电压下保持时间间隔TI,之后在时间t2再次减小。 Time interval TI output voltage remains at that voltage, then reduced again at time t2. 电压又在时间间隔TI内保持恒定,之后再次减小(在时间t3)。 Voltage is again within time interval TI is kept constant, then decreased again (at time t3). 此时输出电压在本例中已达到输入电压VIN的70%,它对应于变压器分接头P4。 At this time, in the present embodiment the output voltage has reached 70% of the input voltage VIN, which corresponds to a transformer tap P4. 在本例中,该输出电压对应于功率控制设备的希望输出功率电平,因此输出电压保持在该电平下而不作进一步减小。 In the present embodiment, the output voltage is desired output power corresponding to the power level control device, the output voltage remains at that level without further reduced. 当增加另外负载时,例如接通另外荧光灯,则输出电压再次增大到最大(时间t4所说明),并且之后输出电压按上述方式逐步返回到其静态电平,除非在此期间增加另外负载。 Further, when the load increases, for example, a fluorescent lamp is turned further, the output voltage is increased again to the maximum (illustrated at time t4), and after the output voltage of the above-described manner to gradually return to its quiescent level, unless additional load is increased during this period.

参考上述例子,可能由数字处理电路10典型地存储在存储器中的参数数据将是减(静态)输出功率电平或与其相对应的数据,例如变压器分接头的标识,或从最大电压电平的减小数,或由输出监视电路所监视的实际输出电压,保持在最大电压的时限(TS),减小时间间隔(TI),以及在返回到最大电压之前所要求的负载增加阈值。 Referring to the above example, may be 10 typically stores the parameter data in the memory by the digital processing circuit will be reduced (quiescent) output power level, or its corresponding data, such as transformers identified joint, or from the maximum voltage level log reduction, or by the output monitoring circuit monitors the actual output voltage is maintained at the maximum voltage limit (the TS), to reduce the time interval (TI), and before returning to the maximum voltage threshold required load increases.

例如,考虑一种功率控制设备,其中构成电力装置,使输入电压为240V交流,而输出电压以10V步长在240V到150V可变(例如具有十个二次分接头的自耦变压器)。 For example, consider a power control apparatus, wherein the power means constituting the input voltage is AC 240V, the output voltage of 10V to 150V 240V step size variable (e.g. autotransformer having ten secondary taps). 对于典型应用,用于这样布置的控制参数可能为:减小的输出 VR=200V最大电压时间 TS=20秒减小间隔时间 TI=3秒负载增加阈值 IT=0.5安培输出现在参考图4,示出了数字处理电路10的微处理器的控制算法的流程图100,它从初始化步102开始,在该步对微处理器及其各种输入和输出进行初始化,以便保证能够接收和发送有关信号。 For typical applications, control parameters such arrangement may be: reduce the maximum output voltage VR = 200V TS = 20 seconds to reduce the time interval TI = 3 seconds Load increase threshold value IT = 0.5 A output Referring now to Figure 4, there is shown a flowchart of a control algorithm for the microprocessor 10 of the digital processing circuit 100, which starts initialization step 102, at which step the microprocessor and its various inputs and outputs are initialized, in order to ensure can receive and transmit signals related . 并且此时,微处理器查询其相关存储器,以检索上述讨论类型的控制参数。 And at this time, the microprocessor queries its associated memory to retrieve the control parameters of the type discussed above. 最初把对各负载6的输出功率设置为最大功率(步104),例如以使荧光灯的起动容易。 Initially the power output of each load 6 is set to maximum power (step 104), for example, so that the fluorescent lamp is easily started. 这是由数字处理电路10通过可用的功率控制电路16来控制电力装置8,以便使电力装置提供最大输出功率(例如满电网线电压)来实现的。 10 is a control circuit 16 which controls the power of the digital processing circuit 8 by means of power available, so that the power device to provide maximum output power (e.g. full power line voltage) to achieve. 在图6例子中,这将对应于线46上来自数字处理电路的控制信号,该控制信号控制多路电路42,以便把输出线44与自耦变压器分接头P1耦合。 In the example of Figure 6, this would correspond to a control signal from the digital processing circuit 46 on the line, to the control signal multiplexer circuit 42, the output line 44 to the junction P1 autotransformer coupling points. 一旦电力装置设置为最大功率,就在步106起动延时定时器,以便开始计时最大功率间隔时间(TS,参考图7)。 Once the power device is set to maximum power, then in step 106 the start delay timer to begin timing the maximum power interval (the TS, with reference to FIG. 7).

电力装置输出的参数由与输出电源9耦合的监视电路14来测量(步108)。 Parameter outputted from the power monitoring circuit coupled to the output of the power supply 914 is measured (step 108). 典型地这些参数将包括供给各负载的输出线电压和输出线电流。 These parameters typically include the output line voltage supply line and the output current of each load. 如果供给一个特定负载的线电流增加,这可能表示例如因接通附加灯而使负载增加。 If the supply line current for a particular load increases, this may indicate, for example, by turning on the lamp load is increased additionally. 如果负载保持恒定,过程从步110转到步112,在步112确定是否经过了延时TS。 If the load remains constant, the process proceeds to step 112 from step 110 in step 112 determines whether a delay TS. 当仍未经过延时TS时,过程继续重复步108、110和112,以监视输出参数用于负载增加。 When the delay has not yet elapsed the TS, the process continues to repeat steps 108, 110 and 112 to monitor the output parameters for the load increases. 负载增加由相对时间的测量输出线电流的比较值来检测,以便感受电流增加。 Load increase is detected by comparing the measurement value of the output line current versus time, in order to increase the current feeling. 当检测到电流增加时,把增加量与负载增加阈值控制参数比较,以便确定增加的电流是否构成值得使输出返回到满功率电平的负载增加。 When the detected current is increased, the increased amount of the load increase threshold control parameter in order to determine whether the increased current constitutes worthwhile to return to full power output level of the load increases.

如果在步110检测到负载增加,过程转到步126,此时测量由监视电路12所监视的输入参数。 If at step 110 the load increase is detected, the process proceeds to step 126, when measured by the monitoring circuit 12 monitors the input parameters. 监视电路12可能以和监视电路14不同的方式,监视电网输入电源的线电压和电流,因为在本例中特别重要的是输入电信号的相位信息。 Monitoring circuit 12 may be in a different manner and monitoring circuit 14 monitors the input power supply line voltage and current, since in this case it is particularly important phase information of the input electrical signal. 如前所述,优选地由电力装置实行的功率电平之间的任何转换或变化都在输入电源波形的过零点时发生,以便避免转换期间的噪声和瞬变现象。 As described above, any conversion or variation between power levels are preferably carried out by the power supply means in the input waveform is zero when occurred, in order to avoid noise and transients during conversion. 因此,电压和电流波形的瞬时值可以由监视电路12以与电路14所供给的峰值或RMS值相比较的形式来提供。 Thus, the instantaneous values ​​of voltage and current waveforms may be 12 to peak or RMS values ​​supplied by the comparison circuit 14 provided in the form by the monitoring circuit. 一种探测过零点点的方式是利用包括在数字处理电路10中的数字信号处理(DSP)电路。 A method of detecting point through the use of 0:00 embodiment comprises a digital signal processing in the digital processing circuit 10 (DSP) circuit. 例如,为了探测其过零点点,可以用DSP来分析瞬时电网输入电源的电压和电流电平的数字采样。 For example, in order to detect its zero crossing point, DSP can be used to analyze the grid instantaneous voltage and current of the input digital power level sampling. 将会容易认识到,这些特征的实现为本领域技术人员所理解。 It will be readily recognized that the implementation of these features are known to those skilled in the understanding.

在步126和128监视输入参数,直到信号的定相适当为止(例如在过零点点),然后过程转到步104,如上所述,在该步使电力装置8的功率设置为最大电平。 In step 126 and 128 monitor the input parameters until the phasing until the appropriate signal (e.g., zero crossing point), then the process goes to step 104, described above, in this step of the power means to the maximum power level 8.

当最大功率延时TS结束时(步112),过程把功率电平逐渐地减小到要求(减小的)功率设定值。 When (step 112) the end of the maximum power delay TS, the process of gradually reducing the power level to the required (reduced) power setting. 这在步114和116开始,在该步以和步126和128类似方式监视输入参数,直到输入定相正确为止。 This begins at step 114 and 116, and the steps 126 to step 128 and monitors the input parameters in a similar manner, until the input phasing correct. 当定相达到过零点点时,数字处理电路10控制电力装置8,以便减小输出功率电平(步118)。 When the phasing reaches the zero crossing point of the digital processing circuit 10 controlling the power device 8, so as to reduce the output power level (step 118). 再参考图6,在第一种情况下,通过把多路电路42连接从自耦变压器分接头P1变到P2,这个动作可以使输出电压从1.0VIN减到0.9 VIN。 Referring again to FIG. 6, in the first case, the circuit is connected through the multiplexer 42 from the autotransformer tap P1 is changed to P2, this action can cause the output voltage from the reduced 1.0VIN 0.9 VIN. 数字处理电路10然后通过比较上述的存储控制参数数据,确定是否达到了预选的减功率电平。 The digital processing circuit 10 then compares the stored control parameter data to determine whether the power level of a preselected Save. 在图7例子中,这种情况在供给负载6的功率由电力装置减小三次之后发生。 In the example of FIG. 7, in this case supplied to the load 6 after reducing power generated by the power device three times. 如果希望的减功率电平还没有达到,那么在初始化与时间间隔TI(图7)相对应的间隔定时器之后,过程返回到步108。 If desired reduced power level has not been reached, then after TI (FIG. 7) corresponding to the interval timer and the initialization time period, the process returns to step 108. 典型地,间隔定时器可能约为几秒,而最大功率延时(TS)可能约为15秒左右。 Typically, the interval timer may be about several seconds, and the maximum power delay (TS) may be about 15 seconds.

在上述例子中,对于控制参数,根据供给负载的实际输出电压VR来表示减小的输出功率电平。 In the above example, the control parameters, the actual output voltage VR supplied to the load represented by the output power level is reduced. 在这种情况下,步120将通过把控制参数VR与监视电路14所供给的测量输出电压相比较来实现。 In this case, the step 120 by measuring the output voltage 14 supplied from the control circuit monitoring parameter VR and comparing achieved. 于是,如果VR大于实际输出电压,则已达到减小的输出功率电平,如果VR不大于实际输出电压,过程继续以便再次减小输出电平。 Thus, if greater than the actual output voltage VR, already reaches the output power level is reduced, if not greater than the actual output voltage VR, the process continues to reduce the output level again.

一旦达到希望的减小的功率电平,微处理器控制算法就进入包括步122和124的监视环,与步108和110类似,这两步监视来自监视电路14的输出参数,并且探测任何负载增加。 Once the desired reduced power level, the microprocessor control algorithm proceeds to step 122 and monitoring comprises the ring 124, similar to the steps 108 and 110, two steps from the monitoring circuit 14 monitors the output parameters, and detect any load increase. 如果探测到负载电流增加比阈值大,控制器算法就转到步126,以监视输入信号的定相,然后在步104使输出功率返回到最大电平。 If the detected load current increases greater than the threshold value, the controller algorithm passes to step 126 to monitor the phasing of the input signal, then the output power level returns to the maximum at step 104.

图2说明按照本发明的一个实施例的功率控制设备,它相对图1所示实施例包括附加特征。 Power 2 illustrates an embodiment of the present invention, a control apparatus, which is relatively embodiments include additional features shown in FIG. 1. 特别是,输入监视电路12包括一个来自光强度测量装置26,例如光电二极管或其他类似装置的输入。 In particular, the input from the monitoring circuit 12 includes a light intensity measuring device 26, an input such as photodiodes or other similar devices. 光强度测量装置典型地将布置在由构成负载6中一个的荧光灯所照明的空间内,以便对由功率控制设备所供电的负载,提供它所产生的光的测量值。 Light intensity measuring means will typically be disposed within a 6 constituting a fluorescent lighting load space, in order to control the power supply to the load device, provides a measure of the light it generates. 这样使数字处理电路10能够实现反馈环路,以便能控制电力装置,从而按照规定的光强度,而不是按照上述特定功率电平来输出功率。 This allows the digital processing circuit 10 can implement a feedback loop, so as to control the power means, whereby according to a predetermined light intensity, not according to the specific power level of output power. 所供给的光强度可以通过光强度设定输入24来设置,或可以由存储器中所存储的控制参数数据来规定。 Light intensity setting input 24 can be supplied set by the light intensity, or may be specified by the control parameter data stored in the memory. 对本领域技术人员来说,为了实现光强度反馈控制而在数字处理电路10的过程中所必需的控制步骤是显而易见的,这里不必详细叙述。 The skilled person, in order to achieve feedback control of light intensity controlling step in the process of the digital processing circuit 10 which are necessary will be apparent, need not be described here in detail.

图3是说明功率控制设备的另一个实施例的方框图,该实施例特别适用于控制街灯或其他类似灯。 FIG 3 is a block diagram of another embodiment of a power control apparatus described, this embodiment is particularly suitable for controlling the streetlight lamp or the like. 这个实施例也包括一个光强度测量装置26,以便使控制设备能改变由电力装置8供给的功率,从而使提供照明所需的功率达到预选水平。 This embodiment also includes a light intensity measuring device 26, so that the control device 8 to change the power supplied by the power means, so that the power required to provide illumination reaches a preselected level. 该光强度测量装置特别在包括负载6的灯对一个还接收自然光的区域照明情况下,例如街灯情况下有利,以便能减小功率,以当自然提供附加照明时(例如太阳升起时),减小灯负载的照明。 The particular light intensity measurement means further comprising a load to the lower region of the illumination lamp 6 in the case of receiving natural light, for example, the case of street lights Advantageously, in order to reduce the power, in order to provide additional lighting when natural (e.g., when the sun rises), reducing the lamp load. 并且在本实施例中,微处理器10包括一个控制程序,它使其能够确定包括负载6的灯是否故障。 And in the present embodiment, the microprocessor 10 includes a control program which enable it to determine whether the lamp failure comprises a load 6. 这种情况通过参考由输出监视电路14所提供的监视信号而能容易确定。 This situation can be readily determined by reference to the monitor signal output by the monitoring circuit 14 is provided. 本例中功率控制设备2还包括一个遥测电路28,它在灯负载6故障情况下发送数字处理电路10的输出。 In this embodiment the power control device 2 further comprises a telemetry circuit 28 which sends the digital output processing circuit 10 in the lamp load 6 fault conditions. 遥测电路28通过无线电信号或电话信号,把其输出例如发送到一个中央控制器(未示出),中央控制器然后能采取措施,以便更换故障灯。 Telemetry circuit 28 via radio signals or telephony signals, for example, its output is sent to a central controller (not shown), the central controller can then take measures to replace the faulty light.

事实上可能有不止一个光强度测量装置26对数字处理电路10提供输入,以便从照明负载6所照明的多个位置供给光强度测量。 26 may in fact be more than the digital processing circuitry a light intensity measurement device 10 provides an input to the load over six positions supplied from the illumination light intensity measurements illumination. 在这种情况下,数字处理电路10例如可以根据测量装置的具体位置,对光强度测量进行加权平均,以便控制电力装置8。 In this case, the digital processing circuit 10, for example, a weighted average light intensity measurements depending on the position measuring device, in order to control the power device 8. 这样,多个光强度测量装置可以对数字处理电路10提供多个输入信号,各信号的值由各自预定的加权值来加权。 Thus, a plurality of light intensity measuring device may provide a plurality of input signals to the digital processing circuit 10, the value of each signal is weighted by a respective predetermined weighting value. 然后对加权光强度测量进行平均,并且把该平均值与作为控制参数存储在存储器中的预定值比较。 Light intensity measurements is then the weighted averaged, and the average value is compared with the predetermined value in the memory as a control parameter storage. 这样使功率控制设备能够考虑负载输出的实际影响,以便能用平均光强度值和对应的控制参数,而不是用输出线电压与预定减输出电压电平控制参数之间的比较,来确定适当的减小的输出功率电平。 This allows the control device to the power output load regardless of the actual impact, to use the average light intensity value and the corresponding control parameter, instead of the output voltage level of the comparison between the control voltage and the output line with a predetermined deceleration, to determine the appropriate the reduced output power level. 根据照明和使用的功率节省策略,对于安置为受自然或外部照明影响的光强度传感器,可以如希望那样用较大或较小加权来处理。 The illumination and power saving strategy used for the placement of a light intensity sensor influence by natural or external illumination may be treated as desired as with a larger or smaller weighting. 可选择地,由多个光强度传感器提供的输入信号可以经受阈值检验而不是加权平均,其中把最高或最低光强度传感器信号(为了考虑瞬时变化,可能对时间平均)与一个阈值比较,以确定所考虑的区域在任何位置是否过照明或欠照明。 Alternatively, the input signal provided by the plurality of light intensity sensors may be subject to a threshold test instead of weighted averaging, wherein the highest or lowest light intensity sensor signal (To account instantaneous variations may be averaged over time) is compared with a threshold to determine area under consideration is too under-lighting or lighting in any position.

各功率控制设备2能构成为通过多个输出电源9来控制多个负载6。 Each power control apparatus 2 can be configured to control a plurality of loads 6 through a plurality of power supply 9 output. 一种可以实现的方式是构造功率控制设备,使多个电力装置8与数字处理电路10并联耦合,并且使各电力装置8与分离的相应负载6耦合。 Way that can be achieved is to construct the power control apparatus, a plurality of power devices 8 coupled to the parallel circuit 10 and digital processing, and the respective power devices 8 coupled with a separate respective load 6. 然而,为了分别地控制传送到各负载6的功率,相应的电力装置8各自应该由数字处理电路10分别来控制,并且为此应该对各电力装置提供与控制电路10的分开控制连接。 However, to separately control the power delivered to each load 6, each respective power means 8 should be controlled separately by the digital processing circuit 10, and to this end should be controlled separately for each connection means for providing power and control circuit 10. 此外,应该包括分离式输出监视电路14,用于各电力装置8以便例如能探测任何个别负载6的增加,并且通过仅控制对应的电力装置来处理该负载增加。 Further, it comprises a separate output monitor circuit 14, for example, each power device 8 so as to detect any individual load 6 increases, and by controlling only the corresponding power devices to handle the increased load. 输入监视电路12可以共同用于控制各电力装置。 12 can collectively input monitoring circuit for controlling each power apparatus. 类似地,在电力装置包括变压器情况下,通过用多个二次输出来构成变压器,使这多个二次输出例如通过与相应的多路电路连接而能个别分接,有可能从单电力装置提供多个输出电源。 Similarly, in the power transformer means includes a lower case, a plurality of secondary output of the transformer is constituted by, for example, so that the plurality of secondary output via multiplexer connected to the respective circuit can be tapped individually, it is possible from a single power device providing a plurality of output power.

为了控制输出电源,数字处理电路10的控制算法当然必须适合于结合图4所述的算法,以便处理多输入和输出。 In order to control the output power, the control algorithm of digital processing circuitry 10 must of course be suitable for binding of the algorithm in FIG. 4, in order to process multiple input and output. 如本领域技术人员已知,一种可以实现的方式是安排数字处理电路10为多任务,或利用分时或其他类似方式在处理任务之间交换。 As those skilled in the art, it can be implemented way is to arrange the digital processing circuit 10 to multitask, or by time sharing manner or the like exchanged between processing tasks. 然而,还将认识到,在执行图4说明算法时,在正常操作期间的大部分时间内,过程将保持在包括步122和124的监视环中。 However, it will be appreciated that, when performing the algorithm described in FIG. 4, most of the time during normal operation, the process will remain in the monitoring loop comprising steps 122 and 124. 因此,使算法和数字处理电路可以适合于控制多电力装置的一种方式是提供一个具有中断的类似环,该中断由耦合到数字控制电路的输出电源中任何一个上的负载探测增加来驱动。 Therefore, the algorithm and digital processing circuit may be adapted for controlling multiple power devices a manner to provide a similar loop with an interrupt, the interrupt output from the power control circuit coupled to the digital load detection on any increase to drive. 当中断起动时,数字处理电路的控制算法转到为对应负载和电力装置所特有的子程序,以控制供给功率的增加和渐减。 When an interrupt is started, the control algorithm for the digital processing circuit to the corresponding load and power device specific subroutine to control the supply of power to increase and decreasing.

如上所述,功率控制设备2还可能构成为按照一天的时间或一周的天,改变从电力装置输出的功率电平。 As described above, the power control apparatus 2 may also be configured in accordance with the time of day or days of the week, changing the power level of output power from the apparatus. 控制参数数据可以安排为例如通过存储天和时间数据及对应的减小的输出功率电平值,还存储表示希望输出功率电平的暂时变化的信息。 Control parameter data may be arranged, for example, the output power level value and storing day and time data corresponding to the reduced, but also the change information is temporarily desired output power level storage representation. 数字处理电路的控制算法也可以修改为周期地检查所存储的时间/天数据,以便确定何时出现所存储的时间和天,并且其时用和配合时间和天相对应的减小的输出功率电平,更换操作的减小的输出功率电平。 The digital processing circuit control algorithm may be modified to periodically examine the stored time / day data in order to determine when a stored time and day of occurrence, and the time and day and with corresponding reduced output power of the time use level, replacement of reduced output power level. 例如,在商业建筑物中,可能希望在交易小时期间有一个功率电平操作,在清洁工或其他类似人员所要求的时间期间有另一个功率电平操作,而在其他时间期间有又一个功率电平操作。 For example, in commercial buildings, it may be desirable during trading hours there is a power level operation, during the time cleaners or other similar officer may require another power level operation, but there is another power during other times level operation. 参考以上叙述,对数字处理电路的控制算法中能包括这种功能准备的方式将容易理解。 Reference to the above description, the control algorithm of the digital processing circuit can be included in a manner such functionality will be readily appreciated prepared.

编程口18安排为从外部源,例如中央控制板接收指令和/或数据。 Programming port 18 is arranged, such as a central control board receives instructions and / or data from an external source. 编程口18的一个特别用途是改变数字处理电路10中存储器所存储的控制参数数据。 A special purpose programming port 18 is to change the control parameter data stored in the memory 10 in the digital processing circuitry. 例如,如果希望增大由功率控制设备控制照明的特定区域中的光强度,那么可以从远距离源,或甚至从本地输入键盘或其他类似装置发送指令,以改变与减小的功率电平对应的控制参数。 For example, if desired to increase the intensity of the specific region is controlled by controlling the lighting device in the power, the distance from the source, or even a keyboard or other similar input means for transmitting from the local command to change the power level corresponding to a reduced control parameters. 编程口能由控制设备用来接收数据,以更改或替换上述任何控制参数,包括改变一天中不同时间的输出功率电平的数据。 Programming port can be used by the control device receives the data, to change or replace any of the control parameters, including changing day data output power level at different times. 各功率控制设备的数字处理电路可以个别编码,以便微处理器将仅对在编程口18接收的数据起作用,该编程口18预先加有正确编码。 Digital processing circuit of each power control apparatus is may be individually coded, so that only the programming data to the microprocessor 18 receives the function port, the port 18 previously programmed properly encoded added. 这种布置既作为安全措施操作,又作为允许多个功率控制设备与在数据总线上通信的单个中央控制器相耦合的装置来操作。 This arrangement not only as a safety measure operation, to operate the apparatus allows a plurality of power control devices and a single central controller communicating on a data bus coupled to and as. 像这样的布置能在多种应用场合,例如在大型商业建筑物中有利。 Energy, such as favorable as such arrangements in a variety of applications in large commercial buildings. 例如,具有多楼层的大型零售商店可能具有分式功率控制设备2,用于控制建筑物各楼层上的灯。 For example, a large retail store having multiple floors might have a fractional power control device 2, the lamp on each floor of a building for controlling. 然而,可能还希望从中央场所,例如建筑物的保安室对灯可控制或可编程。 However, it may also be desirable from a central place, such as a building security room or control of the lamp may be programmable. 在这种情况下,可能按图5所示方式把多个功率控制设备与单个中央控制板50连接。 In this case, in the manner shown in Figure 5 may be a plurality of power control devices and a single central control panel 50 is connected.

上述输出口20还提供外部通信,并且可能还通过和编程口18相同的数据总线与中央控制板连接。 The output port 20 also provides external communication, and possibly also through a port 18 and programming the same data bus connecting the central control panel. 为了对使用功率进行估计和分析,数字处理电路10中的存储器优选地留有存储空间,以存储表示功率控制设备的性能的数据。 In order to estimate and analyze the use of power, the memory 10 preferably remains in the digital processing circuit memory space to store a power control device performance data. 在最简单的实施中,每次数字处理电路控制电力装置,以增大或减小功率电平时,就对存储器进行输入表示时间和结果产生的功率电平。 In the simplest embodiment, each time the digital processing circuit controls the power means to increase or decrease the power level on the memory input represents the power level and time of the result. 这个数据提供足够表示功率控制设备的性能的信息。 This data provides information sufficient to represent the performance of the power control device. 作为附加措施,可以在各控制变化时存储输出线电流值(表示负载),与没有功率控制设备的额定电网线功率下操作的相同负载比较,它帮助确定负载信息和功率消耗信息两者。 As an additional measure, the current value can be stored for each change of the control output line (represented by a load), compared to the same load at the rated power operation of the line power without the power control device, which helps to determine both the load information and the power consumption information. 在各控制变化时存储这样信息的技术细节为本领域技术人员所公知。 Stored in the respective control change technique such details are known to those skilled in the art.

为了检索数字处理电路存储器中所存储的性能数据,电路10和控制算法优选地构成为响应在编程口18所接收,并对该特定功率控制设备所编码的下载指令,在输出口上传送存储数据。 In order to retrieve the performance data of the digital processing circuit stored in the memory, the arithmetic and control circuit 10 is preferably configured as a program in response to the received port 18, and the device specific power control instructions to download the encoded transmitting data stored in the output . 然后在大多数情况下,把性能数据从数字处理电路传送到远距离场所,以供分析和估计。 Then, in most cases, the performance data from the digital processing circuit to a remote place, for analysis and estimation.

对于波形变换装置来说,使用基于变压器的电力装置的一个优点是除减小可能实行的噪声引入外,还能够有利于实际增大输出线电压,使之超过由输入电源所供给的电压。 Means for waveform transform, one advantage of using a transformer based power device is to reduce the noise introduced in addition to the possible introduction, but also can contribute to the actual line voltage to increase the output, so that the input voltage exceeds the power supplied. 在电网供电电压变化情况下,这一点特别有利。 In the case of supply voltage changes in the grid, which is particularly advantageous. 在这种情况下,功率控制设备可以补偿供电电压的变化,甚至把输出电源电压控制为比输入电压高的电平。 In this case, the power control device may compensate for variations in the supply voltage, the output supply voltage control even higher than the input voltage level. 为此,在所使用的电力装置取变压器形式下,变压器有利地设有一个或多个分接头,它们提供大于一次电压的二次电压。 For this purpose, the power means is used to take the form of a transformer, the transformer is advantageously provided with one or more taps which provide a secondary voltage is greater than the primary voltage. 于是能进一步增强控制算法,以监视输入电源的峰值线电压,并且当要求满功率时提供电压增高。 Then the control algorithm can be further enhanced to monitor the peak line voltage of the input power source, and the voltage is increased when it is desired to provide full power.

以上仅通过例子详细地叙述了本发明,并且叙述不认为作为本发明的限定,本发明由附加权利要求来限定。 These are only described by way of example of the present invention in detail, and the description is not considered as limiting the present invention, the present invention is defined by the appended claims.

Claims (12)

1.一种用于照明系统的功率控制设备,包括:一个功率变化装置,其耦合为接收交流电输入电源,并且产生可控的交流电输出电源,用以操作包括多盏灯的电负载;监视装置,用于监视输入电源和输出电源的电参数,以产生监视信号,该监视装置检测通过所述输出电源供给所述电负载的线电流的变化;一个数字处理装置,其耦合为接收所述监视信号,并且与所述功率变化装置耦合,以便控制所述功率变化装置,从而使所述输出电源在最大输出电平与最小输出电平之间改变;一个定时器,其与所述数字处理装置耦合;以及一个第一存储器,用于存储控制参数,并且与所述数字处理装置耦合,所述控制参数包括线电流增加阈值;其中所述数字处理装置响应所述监视信号的状态以控制所述功率变化装置,该监视信号表示所述线电流超过所述阈值的探测到 1. A power control system for a lighting device, comprising: a power variation means coupled to receive an AC input power source, and to produce a controlled AC output power to operate an electrical load comprising a plurality of lamps; monitoring means for monitoring electrical parameters of the input power and output power, to generate a monitoring signal, the monitoring means detecting said output power supply by a change of the electrical load line current; a digital processing means, coupled to receive said monitoring signal and coupled to said power variation means so as to control said power variation means so that the output power varies between a maximum output level and the minimum output level; a timer with said digital processing means coupled; and a first memory for storing control parameters and coupled to said digital processing means, the control parameter comprises a line current increase threshold value; wherein said digital processing means is responsive to the state of the monitor signal to control the power varying means, the monitoring signal indicative of the line current exceeds the threshold detection to 增加,以便控制所述功率变化装置在一个预定时限期间以第一预定电平产生所述输出电源,之后使所述输出电源减小到第二预定电平,并且其中所述第二预定电平和所述预定时限由所述数字处理装置按照存储在所述第一存储器中的控制参数来设置。 Increased, so as to control said power variation means to produce said output power source during a predetermined time at a first predetermined level, then the output power is reduced to a second predetermined level, and wherein said second predetermined level the predetermined period of time according to control parameters stored in the first memory is set by said digital processing means.
2.如权利要求1所述的功率控制设备,其中所述存储的控制参数包括一天的预定时间和/或一周的预定天的指示,以及包括所述第二预定电平的对应值,并且其中所述数字处理装置在所述的一天的预定时间和/或一周的预定天响应所述定时器,以使所述第二预定电平变为所述存储器中存储的对应值。 2. The power control apparatus of claim 1, wherein said stored control parameters including a predetermined time of day indicating the predetermined day and / or week, and includes a corresponding value of the second predetermined level, and wherein said digital processing means at a predetermined time of day according to the predetermined day and / or week in response to the timer, so that the second predetermined level to the corresponding value stored in the memory.
3.如权利要求1或2所述的功率控制设备,包括至少一个与所述数字处理装置耦合的光传感器,其中所述数字处理装置响应由该至少一个光传感器所探测的光强度,以增大或减小所述第二预定电平。 3. The power control apparatus of claim 1 or claim 2, comprising at least one light sensor device is coupled with said digital processing, wherein said digital processing means is responsive to the light intensity of the at least one light sensor is detected, in order to increase or decrease said second predetermined level.
4.如权利要求3所述的功率控制设备,包括多个与所述数字处理装置耦合的光传感器,每个光传感器产生一个相应的探测光强度值,并且其中所述数字处理装置通过操作来根据所述存储器中所存储的预选的相应的加权系数计算该探测光强度值的加权平均,所述数字处理装置响应该加权平均来增大或减小所述第二预定电平。 4. The power control apparatus according to claim 3, comprising a plurality of light sensors coupled to said digital processing means, each optical sensor generates a corresponding detection light intensity value, and wherein said digital processing means by operating weighted average intensity values ​​of the probe light according to the respective weighting coefficients stored in said memory preselected, said digital processing means responsive to the weighted average to increase or decrease said second predetermined level.
5.如权利要求1或2所述的功率控制设备,还包括一个与所述数字处理装置耦合,以便接收控制指令的输入口,其中所述数字处理装置响应第一控制指令,改变包括所述第二预定电平的所述存储的控制参数。 5. The power control apparatus of claim 1 or claim 2, further comprising a means coupled to the digital processing, so as to receive a control command input, wherein said digital processing means is responsive to a first control instruction, said change comprises second control parameter stored in said predetermined level.
6.如权利要求5所述的功率控制设备,还包括一个与所述数字处理装置耦合以存储性能数据的第二存储器,并且其中对于所述输出电源的每一功率变化,所述数字处理装置在所述第二存储器中存储性能数据。 Power as claimed in claim 5 and wherein for each power variation in said output power source said digital processing means controlling apparatus claim, further comprising a second memory coupled to said digital processing means for storing performance data, performance data is stored in the second memory.
7.如权利要求6所述的功率控制设备,其中所述性能数据包括表示所述输出电源的输出电平和发生功率变化的时间的数据。 7. The power control apparatus of claim 6, wherein the performance data includes a representation of the output power of the output data power level and time change occurs.
8.如权利要求7所述的功率控制设备,还包括一个与所述数字处理装置耦合的输出口,并且其中所述数字处理装置响应第二控制指令,把所述第二存储器中存储的所述性能数据传送到所述输出口。 The power control apparatus as claimed in claim 7 stored in the second memory required, further comprising an output port coupled to said digital processing means, and wherein said digital processing means is responsive to a second control instruction, transmitting said performance data to the output port.
9.如权利要求1所述的功率控制设备,其中所述监视装置监视所述输入电源的线电压和/或线电流,以便确定其过零点时间,并且其中所述数字处理装置适合于控制所述功率变化装置,以便仅在至少所述过零点时改变输出电源。 9. The power control apparatus of claim 1 wherein said monitoring means monitoring the input power supply line voltage and / or line current claim, in order to determine over which time zero, and wherein said digital processing means is adapted to control the said power variation means so that at least only the power output by changing the zero point.
10.如权利要求1所述的功率控制设备,其中所述功率变化装置包括一个可调变压器,并且其中所述第一预定电平对应于比所述第二预定电平大的交流电压。 10. The power control apparatus of claim 1, wherein said power variation means comprises a variable transformer, and wherein said first predetermined level corresponds to a level greater than the second predetermined level AC voltage.
11.如权利要求1所述的功率控制设备,包括多个与所述数字处理装置耦合的功率变化装置,每个功率变化装置被安排为把它的输出电源供给一个对应的不同电负载。 11. The power control apparatus of claim 1, comprising a plurality of power variation means coupled to said digital processing means, wherein each of the power changing means is arranged to the different electrical loads its output corresponding to a power supply.
12.如权利要求11所述的功率控制设备,其中所述数字处理装置适合于按照所述第一存储器中存储的不同的对应控制参数来控制每个功率变化装置。 Power as claimed in claim 11, wherein the control device, wherein said digital processing means is adapted to control parameters to control each of the power variation means according to different corresponding to the first stored in the memory.
CNB961805110A 1996-10-24 1996-10-24 Power control apparatus for lighting system CN1162055C (en)

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